package com.atwulidun.recursion;

public class Test {
    public static void main(String[] args) {
        int[][] direction = {{-1, 0}, {0, 1}, {1, 0}, {0, -1}};
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < 2; j++) {
                System.out.print(direction[i][j]);
            }
            System.out.println();
        }
    }
}
